#0A213C#0A213C

#0A213C is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.6% C 0.059 H 254.3°. Best body text is #FFFFFF at 16.21:1 contrast (WCAG AA passes).

Color values

HEX	#0A213C
RGB	rgb(10, 33, 60)
HSL	hsl(212, 71%, 14%)
HSV	hsv(212, 83%, 24%)
CMYK	cmyk(83.3%, 45%, 0%, 76.5%)
CIE-LAB	lab(12.47, 2.26, -19.97)
CIE-LCH	lch(12.47, 20.09, 276.47°)
OKLab	oklab(24.59% -0.016 -0.0569)
OKLCH	oklch(24.59% 0.059 254.3)
XYZ	xyz(1.4843, 1.4783, 4.4812)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A213C #3C250A

analogous

#0A3A3C #0A213C #0C0A3C

triadic

#0A213C #3C0A21 #213C0A

tetradic

#0A213C #3C0A3A #3C250A #0A3C0C

square

#0A213C #3C0A3A #3C250A #0A3C0C

split-complementary

#0A213C #3C0C0A #3A3C0A

monochromatic

#040E1A #040E1A #0A213C #133E70 #1B5BA5

Accessibility & contrast

On white

16.21

#0A213C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#0A213C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A213C

16.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A213C	#FFFFFF	#000000	##FFFFFF
##0A213C	1.00	16.21	1.30	16.21
#FFFFFF	16.21	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14233D

Deuteranopia (green-blind)

#0D1E3B

Tritanopia (blue-blind)

#00272B

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0a213c;
/* rgb */ color: rgb(10, 33, 60);
/* oklch */ color: oklch(24.6% 0.059 254.3);

Tailwind

colors: {
  custom: {
    50: '#515b72',
    500: '#0a213c',
    950: '#000000',
  },
}

SCSS

$custom: #0a213c;
$custom-light: #515b72;
$custom-dark: #000000;

JSON

{
  "hex": "#0a213c",
  "rgb": {
    "r": 10,
    "g": 33,
    "b": 60
  },
  "hsl": {
    "h": 212.4,
    "s": 71.429,
    "l": 13.725
  },
  "oklch": {
    "l": 0.24586,
    "c": 0.05914,
    "h": 254.3
  },
  "luminance": 0.01478
}

Semantic roles & 50–950 ramp

primary

#0A213C

secondary

#795428

accent

#9B3AEE

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020408

muted

#78797B

Preview Lab

Preview with #0A213C

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →